Finding the Fourth Proportional to 1,119,745,207.40, 1,679,617,811.10 and 843,840,285.80
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Solution
The fourth proportional to 1,119,745,207.40, 1,679,617,811.10 and 843,840,285.80 is: 1,265,760,428.70
Step by Step Solution
- Step 1: Write the proportion equation
1,119,745,207.40 : 1,679,617,811.10 = 843,840,285.80 : x - Step 2: Convert to fraction form
1,119,745,207.40/1,679,617,811.10 = 843,840,285.80/x - Step 3: Cross multiply
1,119,745,207.40x = 1,679,617,811.10 × 843,840,285.80 - Step 4: Simplify right side
1,119,745,207.40x = 1,417,329,173,753,394,176 - Step 5: Solve for x
x = 1,417,329,173,753,394,176/1,119,745,207.40 - Step 6: Final answer
x = 1,265,760,428.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.